I Turned Linux Mint Into a Steam Deck and the Results Were interesting

What happens when you strip away the desktop environment and launch games directly through Gamescope on Linux Mint? Turns out, you might get better results than you'd ever expect — and I mean ever. Welcome to what I'm calling the Mint Deck.

website : https://www.no-signal.uk

In this video I install a custom Gamescope launcher script onto Linux Mint, turning it into a Steam Deck-style gaming experience. Press a keybind, you're in gaming mode. Press another, you're back on your desktop. Simple, clean, and surprisingly powerful.
I benchmark three games on a 5060 Ti with a Ryzen 9 at 1440p and the results are genuinely interesting — especially Cyberpunk, which threw up a number I've never seen before on this system
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GAMES TESTED
Doom Eternal — Forced Proton compatibility, 1440p, path tracing off, VRAM maxed out at 9GB on the 16GB 5060 Ti. The frame graph was flat as a pancake. Rock solid 85 FPS average with barely any dips. Smooth as you like.

Returnal — Running through Proton GE, DLSS quality at 67% upscaling, everything on Epic. Pulled 97 FPS on the benchmark. That's right in the sweet spot for this system and these settings. Impressive stuff from Mint of all things.

Cyberpunk 2077 — This is where it got weird. Ultra ray tracing, DLSS on auto, no frame generation, 1440p. First run came back at 96 FPS. I couldn't believe it so I ran it again — 95. That's higher than I've ever recorded on this machine. Higher than CachyOS. Higher than Omarchy. On Linux Mint. I'm still processing that one honestly.

THE CONCEPT

The idea is simple. Gamescope acts as a compositor that sits directly on top of the system, connecting straight to the game binaries without all the overhead of a full desktop environment running underneath. You get a focused, Steam Deck-like session dedicated entirely to gaming.
Getting in is Super+Shift+G. Getting out is Super+Shift+R. That's it. You're back on your Mint desktop like nothing happened.
There are a couple of quirks to note. My system falsely detects HDR so that needs switching off in Steam settings each time. Resolution is capped at 1440p because 4K through the video output causes issues. MangoHUD was also showing some bizarre readings — Gamescope was reporting completely different frame rates to the in-game counters. Not a dealbreaker since the internal benchmarks are what matter, but it's something to be aware of.

WHY THIS MATTERS
If you're comfortable on Linux Mint and you've been told you need to switch to a more cutting-edge distro to get the best gaming performance, these results might make you think twice. Mint is running an older kernel and older driver versions compared to something like CachyOS or Arch, but by stripping away the desktop environment during gaming, you're letting the hardware do what it does best without anything getting in the way.
The real comparison will come when I run the same benchmarks on Pop OS Cosmic and CachyOS using the same Gamescope setup. That's coming in future videos and I genuinely cannot wait to see how they stack up after what Mint just pulled off.

INTEL ARC NOTE
Quick mention — I still cannot get Doom running on an Intel Arc card. Every other game works fine but Doom refuses. Likely a Vulkan issue. The mission continues.

THE SCRIPT
The Gamescope launcher script is available in the members area for anyone who wants to try it. It hasn't been tested on laptops, multi-display setups, or Wi-Fi — it's been built and tested on a wired desktop rig. If you're a member and you find issues, drop me a message in the members area and I'll work on fixes.

I make videos about Linux gaming, Arch-based distros, hardware tinkering, and getting the most out of your setup. If you're into that, subscribe and stick around. More benchmarks and comparisons are on the way.